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Encoders

Encoders
Encoders
An encoder is a device used to sense position or orientation for active feedback and position control. There are two primary types of encoders: rotary encoders and linear encoders. Both detect and convert position into an electronic signal.

Rotary encoders convert the angular position or motion of a shaft into an electronic signal. These encoders are specifically designed for applications that require precise rates of rotation. Linear encoders are paired with a scale to encode position along a linear path. These encoders are widely used in applications that require accurate, high-speed movement along a fixed path.

Both encoders can either be absolute or incremental. Absolute encoders maintain absolute position even when removed from a power source and do not have a “home” position. Linear encoders, alternatively, require a reference point to report position at certain intervals. Both provide the same accuracy, but absolute encoders are more resistant to power or signal loss.

H25 Series Image
  • Single or Dual Channel Output, Complementary and Indexed Outputs Available
  • Square Flange or Servo Mount
  • 3/8 Shaft
  • IP66 with Shaft Seal
  • Resolution up to 5,000 Cycles per Turn
The H25 is the flagship of the BEI Sensors product line. It was designed from the ground up for the industrial marketplace. The H25 offers features such as EMI shielding, 40 lb. ABEC 7 bearings, matched thermal coefficients on critical components, and custom high efficiency optics. The encoder meets NEMA 4 and 13 requirements when ordered with the shaft seal. Typical applications include machine control, process control, the wood processing industry, oil well logging, industrial weighing, agricultural machinery, textile equipment, web process control, robotics, and food processing.
Optical Isolator Series Image
  • Accepts Differential and Single Ended Line Driver and Open Collector Signals from Encoder
  • Supply Lines Protected Against Over Voltage to 60V and Reverse Voltage
  • DIN Rail Mount
  • 5~28 VDC Supply
This is a versatile interface between an incremental encoder and receiving electronics. It accepts single ended or differential inputs and provides single ended or differential outputs in either an open collector or line driver configuration. It accommodates all standard operating voltages from 5 to 28 VDC. Up to eight Optical Isolator Modules can be daisy-chained to provide multiple, simultaneous outputs to controllers or PLCs. This Optical Isolator can help clean up noisy signals by converting to a different line driver output. It has a 1 MHz throughput capability and can be used wherever a fast, optically isolated interface is required.
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